The guest rooms Parpaillotte. Guest House in Boesrch in Alsace. Boesrch is 30km south west of Strasbourg, at the foot of Mont Saint Odile and Obernai 4km. Located in the heart of Alsace, at the foot of Mont Sainte Odile, Boersch is one of the few towns in Alsace have kept the decor of yesteryear with its ramparts, towers and countless picturesque corners